I’ve read where RA means everything and also where its not that important. On the water calculators they will have a certain RA for a certain color beer. I know that depending on the water, you can get your pH where it needs to and also have the RA way off. I am going to brew a 15 SRM beer today and my target RA would be around 80. Its seems though with the water I have available the RA is going to end up too low. Will this be a problem?
